Pradhan, Mohan Pratap, Mrinal Kanti Ghose, and Gourav Mittal. 2013. “EFFICIENT TECHNIQUE FOR AUTOMATIC EXTRACTION AND IDENTIFICATION OF ELEVATION FROM A REFERENCE IMAGE”. INTERNATIONAL JOURNAL OF COMPUTERS &Amp; TECHNOLOGY 4 (1):162-71. https://doi.org/10.24297/ijct.v4i1c.3117.